SOLUTION: It takes an older computer 4 times as long to send out a companies email as it does a newer computer. Working together, it takes the two computers 12 minutes to send out the email.

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Question 1144660: It takes an older computer 4 times as long to send out a companies email as it does a newer computer. Working together, it takes the two computers 12 minutes to send out the email. How long will it take the older computer to send out the email on its own?
Answer by ikleyn(52890) About Me  (Show Source):
You can put this solution on YOUR website!
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The new computer works as productive, as 4 old computers work.


Hence, the old and the new computers work together as productive as 4+1 = 5 old computers work.


Thus, 5 old computers do the job in 12 minutes.


Hence, one old computers can complete the job in 12*5 = 60 minutes, working alone.    ANSWER

Solved.